Status bar: the Orin at a glance over every view, like a phone's

Link on the left (with the menu on the Dash), then hot temperature, CAN, OBD while
connected, GNSS fix and satellites, LTE, WiFi, UPS, and the dark/bright button. The
Dash's own top line is gone into it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/impl/plans/DASH-NEXT.md

@@ -12,6 +12,14 @@ what the Orin publishes.
 
 ## 1. Orin status in a top banner, like a phone's
 
+**First cut (2026-10-15):** `widgets/status_bar.dart`, drawn by the shell over every view (the
+Dash's own top line is gone; its menu button moved in). Left: the menu (Dash only) and the
+link. Right: Orin temperature (only from 80 °C), CAN (alarm when absent or bus-off), OBD
+(only while the ELM is connected), GNSS fix icon and satellite count, LTE bars and
+technology (only with a modem), WiFi bars, UPS battery and % (caution on battery, alarm
+under 20 %), then the dark/bright button. Tapping the strip does nothing yet.
+What was asked:
+
 A thin strip across the top of the app (the Dash's own top line included) showing the Orin
 the way a phone's status bar shows the phone: its network links and its power.
 
@@ -65,8 +73,8 @@ chosen readouts.
 
 **Done (2026-10-15):** Settings has Auto / Dark / Bright (a segmented control, kept across
 restarts). Auto follows Android's dark theme (`platformBrightness`, so its schedule too). The
-Dash's button holds the other variant, and a long press returns it to auto. Not done: the
-ambient light sensor as an auto source, and moving the button into the banner (item 1).
+status bar's button (it moved there with item 1) holds the other variant, and a long press
+returns it to auto. Not done: the light sensor as an auto source.
 What was asked:
 
 Today the variant is a switch (the Dash's top-right button, and Settings). Wanted: